diff --git a/mozilla/layout/base/nsIPresShell.h b/mozilla/layout/base/nsIPresShell.h
index 7dcf0cf6962..f2faa19f49f 100644
--- a/mozilla/layout/base/nsIPresShell.h
+++ b/mozilla/layout/base/nsIPresShell.h
@@ -392,6 +392,8 @@ public:
 
 
 #ifdef MOZ_REFLOW_PERF
+  NS_IMETHOD ClearTotals() = 0;
+  NS_IMETHOD DumpReflows() = 0;
   NS_IMETHOD CountReflows(const char * aName, PRUint32 aType) = 0;
 #endif
 
diff --git a/mozilla/layout/base/public/nsIPresShell.h b/mozilla/layout/base/public/nsIPresShell.h
index 7dcf0cf6962..f2faa19f49f 100644
--- a/mozilla/layout/base/public/nsIPresShell.h
+++ b/mozilla/layout/base/public/nsIPresShell.h
@@ -392,6 +392,8 @@ public:
 
 
 #ifdef MOZ_REFLOW_PERF
+  NS_IMETHOD ClearTotals() = 0;
+  NS_IMETHOD DumpReflows() = 0;
   NS_IMETHOD CountReflows(const char * aName, PRUint32 aType) = 0;
 #endif